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www.cea.fr www.cea.fr
DIAGNOSTIC CONTROLS OF
LIPAc
Jean-François DENIS
October 22th 2014 EPICS MEETING
30 OCTOBRE 2014 | PAGE 1 CEA | 22 Otocber 2014
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OUTLINE
Context P.03
Description of each diagnostic P.06
Conclusion P.23
30 OCTOBRE 2014 CEA | 22 Otocber 2014
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Context
Description of each diagnostic
Conclusion
30 OCTOBRE 2014
| PAGE 3
CEA | 22 Otocber 2014
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CONTEXT
IFMIF (International Fusion Materials Irradiation Facility) will be built to provide
an accelerator based on a neutron source to produce high-energy neutrons
(deuterons) at sufficient intensity and irradiation volume to qualify materials for
fusion reactors of the future
A prototype LIPAc(Linear Ifmif Particle Accelerator) identical to the low energy
section of IFMIF is being built to check the validity of the design before
launching the IFMIF construction
30 OCTOBRE 2014 | PAGE 4 CEA | 22 Otocber 2014
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CONTEXT
30 OCTOBRE 2014 | PAGE 5 CEA | 22 Otocber 2014
This facility will be installed at Rokkasho JAEA
(Japan Atomic Energy Agency) site
Irfu-Saclay has developed the control system for several work packages like the
injector and a set of the diagnostic subsystem
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30 OCTOBRE 2014
| PAGE 6
CEA | 22 Otocber 2014
Context
Description of each diagnostic
Conclusion
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DIAGNOSTICS INVOLVED…
30 OCTOBRE 2014
Current transformers (CT)
Beam loss monitor (BLoM)
Electron Emission Grids (SEM-Grid)
Ionization Profile Monitors (IPM)
2 BPMs
(stripline)
2 Slits
(Emittance) RGBLM 1 BPM
(Stripline) FPM
ACCT + DCCT
SEM Grids IPM
D-Plate
FFC
Steerer for SEM
CEA | 22 Otocber 2014 | PAGE 7
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LET'S START WITH THE CABINET…
30 OCTOBRE 2014 | PAGE 8 CEA | 22 Otocber 2014
VME
Power Supplies
( IPMs & BLOMs)
Customized
electronic boards
(IPMs & BLOMs)
Electronics
(SEM-Grids)
Amplifiers
(CT)
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LET'S CONTINUE WITH THE MAIN LAUNCHER…
30 OCTOBRE 2014 | PAGE 9 CEA | 22 Otocber 2014
Current Transformers
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CURRENT TRANSFORMERS
30 OCTOBRE 2014
- The fast acquisition is based on two VME boards, ADAS
ICV108 and ADAS ICV178
- The ICV108 is a controller board with an external trigger
and includes a 4 MB RAM dedicated to measurements
with possibility of DMA transfer.
- The ICV178 is an 8 channels board with 16-bit resolution
for each ADC.
- The sampling frequency goes from 50kS/s up to
1.2MSamples/s
CT is a kind of monitor which allows measuring the beam
current with a precision of 0.15 mA
Particule beam
Diagnostics cabinet
GOAL
VME
CEA | 22 Otocber 2014 | PAGE 10
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CURRENT TRANSFORMERS
30 OCTOBRE 2014 | PAGE 11 CEA | 22 Otocber 2014
Ctrl of one CT
Mean & Std. dev histogram Beam Current
Acquisition parameters
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FROM THE MAIN LAUNCHER…
30 OCTOBRE 2014 | PAGE 12 CEA | 22 Otocber 2014
IPMs
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IONIZATION PROFILE MONITORS
30 OCTOBRE 2014 | PAGE 13 CEA | 22 Otocber 2014 HEBT D-Plate
Diagnostics cabinet - ADAS VME Board to control Front End
Electronic (FEE) and make slow acquisition
- FEE integrates the output current from the
IPM over longer time, typically 0.1 to 1 second
and was specially designed to manage the
sample and hold functions for all beam
configurations (pulse or cw)
- The goal of an IPM is to measure the
transverse beam profile
GOAL
- Power supplies (FUG)
VME
FEE
HV PS
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IONIZATION PROFILE MONITORS
30 OCTOBRE 2014 | PAGE 14 CEA | 22 Otocber 2014
Profile
ctrl Power supplies
Measures
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FROM THE MAIN LAUNCHER…
30 OCTOBRE 2014 | PAGE 15 CEA | 22 Otocber 2014
BLoMs
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BEAM LOSS MONITOR
30 OCTOBRE 2014 | PAGE 16 CEA | 22 Otocber 2014
Diagnostics cabinet - ADAS VME Board to control Front End
Electronic and make slow acquisition
FFE integrates
- Monitoring : the output current from the BLOM
over longer time, typically 0.1 to 1 second and
was specially designed to manage the sample
and hold functions for all beam configurations
(pulse or cw)
- Safety: It provides also a fast interlock signal
to the Machine Protection System (MPS).
- The main goal of the BLoM system is to
measure the particle loss to insure the
machine safety
GOAL
- Powers supplies (CAEN)
VME
FEE HV PS
MPS
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BEAM LOSS MONITOR
30 OCTOBRE 2014 | PAGE 17 CEA | 22 Otocber 2014
Current
Threshold (MPS)
Acquisition ctrl HV Ps
Mean & Standard deviation histogram
Ctrl of one BLoM
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FROM THE MAIN LAUNCHER…
30 OCTOBRE 2014 | PAGE 18 CEA | 22 Otocber 2014
SEM-Grid
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SEM-GRID
30 OCTOBRE 2014 | PAGE 19 CEA | 22 Otocber 2014
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Cliquer sur l’icône de la zone
image
Diagnostics cabinet
- A complete integrated solution with the EPICS
driver, provided by Ganil laboratory, will be used to
manage the measurement and acquire the data
Modbus
The goal of a SEM-Grid is to have a beam profile
measurement at low duty cycle in case of IPM
measurement is not sensitive enough.
GOAL
VME
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SEM-GRID
30 OCTOBRE 2014 | PAGE 20 CEA | 22 Otocber 2014
H profile
V profile
Measures ctrl
PS
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FROM THE MAIN LAUNCHER…
30 OCTOBRE 2014 | PAGE 21 CEA | 22 Otocber 2014
Post mortem
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POST MORTEM…
30 OCTOBRE 2014
- Signals from all BLoM & CT will be sampled at 1 MHz,
and recorded on the circular buffer of 4MB
- When a trigger from the MPS occurs, acquisition is
stopped and the circular buffer gets frozen for analysis.
- The fast acquisition is based on two VME boards, ADAS
ICV108 and ADAS ICV178
In order to understand what
has just happened when the
beam shuts down
Diagnostics cabinet
GOAL
VME
MPS
BLoMs CT CEA | 22 Otocber 2014 | PAGE 22
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30 OCTOBRE 2014
| PAGE 23
CEA | 22 Otocber 2014
Context
Description of each diagnostic
Conclusion
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CONCLUSION
30 OCTOBRE 2014 | PAGE 24 CEA | 22 Otocber 2014
European Acceptance tests were successfully done at Saclay for every kind of
diagnostics
The cabinet left Saclay in September, and arrived last week at Rokkasho!
The commissioning will be done in 2 phases :
- Injector + RFQ + Dplate : in 2016
- The whole accelerator : in 2017
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IRFU
DSM
SIS
Commissariat à l’énergie atomique et aux énergies alternatives
Centre de Saclay | 91191 Gif-sur-Yvette Cedex
T. +33 (0)1 69 08 37 42
Etablissement public à caractère industriel et commercial | RCS Paris B 775 685 019
30 OCTOBRE 2014
| PAGE 25
CEA | 22 Otocber 2014
THANKS FOR YOUR ATTENTION !